Earthquake with magnitude of ML 0.9 on date 11-09-2021 and time 17:45:06 (Italy) in region 4 km SW Lizzano in Belvedere (BO)

A magnitude ML 0.9 earthquake occured in region: 4 km SW Lizzano in Belvedere (BO), on

  • 11-09-2021 15:45:06 (UTC)
  • 11-09-2021 17:45:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.133, 10.866 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Lizzano in Belvedere BO 4 2212 2212
Alto Reno Terme BO 9 6960 9172
Gaggio Montano BO 9 4878 14050
Cutigliano PT 9 1488 15538
Fanano MO 10 2989 18527
San Marcello Pistoiese PT 10 6416 24943
Sambuca Pistoiese PT 11 1626 26569
Sestola MO 13 2508 29077
Piteglio PT 14 1683 30760
Castel di Casio BO 14 3448 34208
Abetone PT 16 621 34829
Montese MO 16 3353 38182
Montecreto MO 17 940 39122
Camugnano BO 18 1885 41007
Fiumalbo MO 18 1280 42287
Castel d'Aiano BO 20 1906 44193

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km N of Pistoia (90315 inhabitants)
34 Km NW of Prato (191150 inhabitants)
43 Km NE of Lucca (89046 inhabitants)
49 Km NW of Scandicci (50609 inhabitants)
51 Km NW of Firenze (382808 inhabitants)
55 Km SW of Bologna (386663 inhabitants)
57 Km S of Modena (184973 inhabitants)
57 Km NE of Viareggio (62467 inhabitants)
59 Km E of Massa (69479 inhabitants)
59 Km NE of Pisa (89158 inhabitants)
62 Km E of Carrara (63133 inhabitants)
66 Km SE of Reggio nell'Emilia (171345 inhabitants)
72 Km W of Imola (69797 inhabitants)
72 Km S of Carpi (70699 inhabitants)
78 Km NE of Livorno (159219 inhabitants)
83 Km E of La Spezia (93959 inhabitants)
83 Km W of Faenza (58541 inhabitants)
86 Km SE of Parma (192836 inhabitants)
94 Km W of Forlì (117913 inhabitants)
98 Km NW of Siena (53903 inhabitants)
99 Km SW of Ferrara (133155 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.9 2021-09-11
15:45:06
44.1327 10.8662 10 2021-09-11
15:49:24
Sala Sismica INGV-Roma 95308561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-11 15:45:06 ± 0.12
Latitude 44.1327 ± 0.0072
Longitude 10.8662 ± 0.0088
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95308561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 626
Semi-minor axis of confidence ellipse (meter) 549
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.34624
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 95308561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-11 15:49:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CRMI.HHZ. 2021-09-11T15:45:20.29 0.6 undecidable manual S 166 0.3462 50 0.38 45
GU.GSCL.HHZ. 2021-09-11T15:45:18.03 0.6 undecidable manual S 318 0.295 50 -0.35 46
IV.CAVE.HHZ. 2021-09-11T15:45:18.23 3.0 negative manual P -0.03 0
IV.MOCL.EHZ. 2021-09-11T15:45:17.18 0.6 undecidable manual S 119 0.2599 50 -0.15 48
IV.MPPT.EHZ. 2021-09-11T15:45:16.23 0.6 undecidable manual S 137 0.2374 110 -0.37 46
IV.BDI.HHZ. 2021-09-11T15:45:15.11 0.6 undecidable manual S 250 0.2059 113 -0.37 47
IV.CRMI.HHZ. 2021-09-11T15:45:14.99 0.6 positive manual P 166 0.3462 50 0.6 42
IV.FNVD.HHZ. 2021-09-11T15:45:14.39 0.6 undecidable manual S 79 0.1871 115 -0.42 46
IV.ZCCA.HHZ. 2021-09-11T15:45:13.04 0.1 undecidable manual P 20 0.232 110 0.68 84
GU.GSCL.HHZ. 2021-09-11T15:45:13.47 0.1 undecidable manual P 318 0.295 50 -0.04 98
IV.MOCL.EHZ. 2021-09-11T15:45:12.81 0.3 negative manual P 119 0.2599 50 -0.09 73
IV.MPPT.EHZ. 2021-09-11T15:45:12.34 0.6 undecidable manual P 137 0.2374 110 -0.14 49
GU.POPM.HHZ. 2021-09-11T15:45:12.97 0.3 undecidable manual S 222 0.1178 126 0.49 69
IV.FNVD.HHZ. 2021-09-11T15:45:11.40 0.1 positive manual P 79 0.1871 115 -0.05 100
IV.BDI.HHZ. 2021-09-11T15:45:11.40 0.1 undecidable manual P 250 0.2059 113 -0.44 92
GU.POPM.HHZ. 2021-09-11T15:45:10.37 1.0 undecidable manual P 222 0.1178 126 0.27 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.POPM.HHE. ML:1.8 0.0007341832 0.1152 AML other m 2021-09-11T15:45:13.50
GU.POPM.HHN. ML:2 0.0011819575 0.1664 AML other m 2021-09-11T15:45:13.14
IV.FNVD.HHE. ML:1.1 8.6994895E-5 0.2048 AML other m 2021-09-11T15:45:15.16
IV.FNVD.HHN. ML:1.2 0.000112903085 0.1024 AML other m 2021-09-11T15:45:15.20
IV.MPPT.EHE. ML:1 5.17795E-5 0.1408 AML other m 2021-09-11T15:45:17.46
IV.MPPT.EHN. ML:0.9 4.56451E-5 0.2048 AML other m 2021-09-11T15:45:17.39
IV.MOCL.EHE. ML:0.8 3.6408265E-5 0.1664 AML other m 2021-09-11T15:45:17.84
IV.MOCL.EHN. ML:0.8 2.8183034E-5 0.0896 AML other m 2021-09-11T15:45:17.92
IV.CRMI.HHE. ML:0.6 1.581055E-5 0.1664 AML other m 2021-09-11T15:45:20.30
IV.CRMI.HHN. ML:0.6 1.548994E-5 0.2816 AML other m 2021-09-11T15:45:20.55
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download